Portal ships are used to create instant connections with distant regions of the galaxy. Such ship can open a large quasi-stable wormhole and travel to the destination point, where it establishes a stable link with another ship in the point of origin. Since quasi-stable wormholes are dangerous, portal ships are fully automated. The ship is also capable of sublight flight in normal space.
Here we can see a smaller ship appearing from subspace:
Front view of the ship:
Rear side of the ship with 3 groups of sublight engines:
Close-up view of the portal:
Close-up views of the engine pods:
Larger photos can be found on flickr.
Thank you for your attention!

Good observation! Actually four fingers are normal for cartoon characters, and the real issue is that there is also a big realistic palm with five fingers in the same scene.
@Littleworlds, @carebear, @Legofunbuild, thank you!

Great idea!
I thought about it, but after pistons I would have needed a portion of a forearm, and then an elbow, and so on. Therefore I decided to limit myself to the palm.
@Aanchir, thank you for your kind words!

The gearbox is a heavily modified version of the one from Porsche. By the way, I used the simple 90° limiter by Didumos69 – thanks for the idea!
Unfortunately, I had already disassembled those models before I started this one.
Wow, thanks!

This is my model of the Meter Maid Cart from Zootopia.
Features:
Full independent suspension;
Easy access to battery box.
Remotely controlled Power Functions:
Driving (Large motor);
Steering (Servo motor) + synchronized steering wheel;
4-speed sequential gearbox (just for fun!) switched with a Servo motor.
Windscreen wiper (Medium motor).
Manually controlled Power Functions:
Headlights (manual switch).
Manual functions:
Rotating flash lights.
If you like this model, please support it on LEGO Ideas!
Also, if you like Zootopia, see my models of Judy Hopps and Nick Wilde! Or even support them on LEGO Ideas!

Here is a simple example:
Put a temporary SNOT brick.
Connect side plates to the SNOT brick.
Replace the SNOT brick with a Technic brick.
Put a Technic peg in the Technic brick.
Now everything is connected together, and there is no collision errors.
In your case I would suggest building something like that: